Pump.



No. 854,711. PATENTED MAY 28, 1907.

G. BARTHOLOMEW.

PUMP.

APPLICATION FILED JULY 2, 1906.

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CHARLES BARTHOLOMEW, OF' NEWARK, OHIO.

PUMP.

Specification of Letterslatent.

Patented May 28, 1907.

Application filed July 2,1906. Serial No. 324,488,

To all whom, it may concern.-

MEW, a citizen of the United States, residing at Newark, in the countyof Newark and State of Ohio, have invented certain new and usefulImprovements in Pumps, of which the following is a specification.

My invention contemplates certain new and useful improvements in pumpsparticularly lift pumps, and the object of my invention is to provide animproved pump construction of this character whereby the parts of thepump may be readily and quickly taken apart to put in new leatherwashers or valves and washers on the piston when the old ones are wornout. Pumps of this character usually have their working parts incomparatively deep wells to prevent freezing and this causes them torust quickly which renders it difficult if not impossible to unscrew theseveral parts to'obtain access to the leather valves and washers of thepiston to renew the same, and it is the primary ob ject of my inventionto construct pumps in which the parts may be readily disconnected, asabove noted, to avoid these difliculties.

For a full understanding of the invention and the merits thereof, andalso to acquire a knowledge of the details of construction of the meansfor effecting the result, reference is to be had to the followingdescription and accompanying drawings, in which:

Figure 1 is a vertical longitudinal section of my improved pump; and,Fig. 2 is a horizontal sectional view thereof.

Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the drawings by the samereference characters.

Referring to the drawings the numeral 1 designates the frame of myimproved pump, the same being provided with an induction pipe 2 which inthe present instance is shown secured thereto by being screwed within apolygonal nipple 3 depending from the base 4 of the frame 1. The passageof the water through the induction pipe 2 is controlled by a valve 5 ofany desired type. The frame 1 is provided at its top with a boss 6 whichis screw threaded on its interior to provide a means for connectionthereto of the eduction or delivery pipe 7. The exterior screw threadedsleeve 8 is screwed in the top of the frame within the lower part of theboss 6 and extends within the frame below the boss, as shown, and a cap9 is provided with a cenl trally screw threaded aperture by which it isBe it known that 1, CHARLES BARTHOLO- connected to and suspended fromsaid sleeve. The cap 9 is provided with several holes 10 to which a rodor similar tool may be applied to screw the cap 9 either up or down uponthe sleeve. The cap 9 opens downwardly as shown and is provided at itslower edge with an inwardly and downwardly facing shoulder 11.

12 designates the pump cylinder which is open throughout its length Whenunattached to'the pump frame and which is designed to rest upon the base4 and upon a gasket or packing 13, its lower end encircling the valve 5as shown. The upper end or edge of the cylinder 12 is, when the parts ofthe pump are in assembled relation, encircled by the flange whichconstitutes the shoulder 11 of the cap 9 and the cap 9 is screwed downtight upon the upper end of the cylinder and closes on the upper endthereof and maintains it in a secure position, a packing ring 14 being,

'preferably, interposed between the shoulder 11 and the upper edge ofthe cylinder. A suction piston 15 is mounted within the cylinder and iscarried by a rod 16 which extends up through the sleeve 8 and theeduction or delivery pipe to its operating means, (not shown).

When the parts of the pump are assembled, it will be seen that thecylinder 12 is securely held in place by being clamped down upon thebase 4 through the instrumentality of the cap 9. Whenever it is desiredto take the pump apart to obtain access to the interiorfparts, such asthe valve 5 and the piston 15, or any purpose, it is only necessary toapply a suitable tool to any of the holes 10 of the cap 9 and turn thesame around to screw it upwardly upon the sleeve 8. This action releasesthe upper edge of the cylinder 12 and by then raising the piston 15 to aplane above the operating cylinder, the same may be readily removed andready access had to both the valve 5 and the piston 15.

From the foregoing description in connection with the accompanyingdrawings, it will be seen that I have provided a pump construction offew and simple parts that may be readily assembled and taken apart whendesired and which when assembled embodies a rigid construction which iseflicient in operation and durable.

Having thus described the invention, what is claimed as new is:

1. A pump, comprising a frame provided ITO with a base plate, a cylinderresting in a detachable manner on said base plate, a cap for saidcylinder, said cap being provided with a downwardly and inwardly facingshoulder at its lower edge adapted to clamp upon the up per edge of thecylinder, an exteriorly threaded sleeve supported in the top of theframe and upon which said cap is mounted in screw threaded engagementwhereby the cap may be raised and lowered upon the sleeve out of andinto engagement with the u per edge of the cylinder, and a piston and r0in said cylinder.

2. A pump, comprising a frame provided with a base plate arranged forconnection to an induction pipe and provided with a valve controllingthe passage of water from said induction pipe, a cylinder adapted torest in a detachable manner upon said base plate within the frame, adownwardly facing cap provided with a shoulder at its lower edge adaptedto bind upon the upper edge of said cylinder whereby to clamp it withinthe frame, an eXteriorly threaded sleeve held in screw threadedengagment in the upper end of the frame, said cap being mounted withscrew threaded engagement on the lower end of said sleeve whereby thecap may be raised and lowered for the purpose specified, said cap beingprovided in its exterior with holes for the reception of an, operatingrod, and a piston and rod adapted to operate in said cylinder.

In testimony whereof I affix my signature in presence of two witnesses.

CHARLES BARTHOLOMEW.

Witnesses:

LEONARD S. EVANS, lVlAUD M. IRWIN.

